com.jfinal.plugin.activerecord.ActiveRecordException: The model attribute length is not exists.
    at com.jfinal.core.Injector.injectModel(Injector.java:125)
    at com.jfinal.core.Controller.getModel(Controller.java:710)
    at com.diasit.base.controller.backoffice.mall.GoodsController.save(GoodsController.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:73)
    at com.diasit.base.interceptor.RoleInterceptor.intercept(RoleInterceptor.java:69)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.diasit.base.interceptor.GlobalParamInterceptor.intercept(GlobalParamInterceptor.java:18)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.diasit.base.interceptor.RoleInterceptor.intercept(RoleInterceptor.java:69)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.diasit.base.interceptor.ExceptionCatchInterceptor.intercept(ExceptionCatchInterceptor.java:19)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.diasit.base.interceptor.GlobalParamInterceptor.intercept(GlobalParamInterceptor.java:18)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.diasit.base.interceptor.InjectInterceptor.intercept(InjectInterceptor.java:21)
    at com.jfinal.aop.Invocation.invoke(Invocation.java:67)
    at com.jfinal.core.ActionHandler.handle(ActionHandler.java:74)
    at com.diasit.base.handle.AppHandler.handle(AppHandler.java:78)
    at com.diasit.base.handle.LibraryHandler.handle(LibraryHandler.java:39)
    at com.diasit.base.handle.SessionHandler.handle(SessionHandler.java:17)
    at com.diasit.base.handle.WebSocketHandler.handle(WebSocketHandler.java:29)
    at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:73)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
    at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
    at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
    at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
    at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
    at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
    at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
    at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
    at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
    at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
    at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
    at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
    at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
    at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
    at org.eclipse.jetty.server.Server.handle(Server.java:365)
    at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
    at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:937)
    at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:998)
    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:856)
    at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
    at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
    at java.lang.Thread.run(Thread.java:748)